Senior Backend Engineer – AI Platform

🕒 il y a 1 mois

🏄 California, Maine, +4 états de plus – Distant

infoinfo

💵 $121 500 - $145 500 / an

⏰ Temps Plein

🟠 Senior

🔙 Ingénieur Back-end

🗣️🇺🇸🇬🇧 Anglais requis

D'où vient cette offre

Publiée sur la page carrières de WEX, pas via un site d'emploi

Repérée par Remote Rocketship il y a 1 mois

Toujours ouverte sur le site de WEX. Vérifiée il y a 8 minutes.

Logo of WEX

WEX

5001 - 10000 employés

Fondée en 1983

🏥 Santé

📦 Logistique

✈️ Tourisme

💰 €310 000 000 Post-IPO Debt en 2020-06

Healthcare • Logistics • Travel

WEX est une plateforme mondiale de commerce spécialisée dans diverses solutions commerciales pour relever les défis opérationnels. Elle propose des services de gestion et de mobilisation des flottes avec ses systèmes de cartes carburant, offrant une gestion de flotte complète et des analyses approfondies. De plus, elle se concentre sur des solutions de paiements pour les entreprises qui simplifient les processus dans différents secteurs, améliorant l'efficacité et la sécurité. WEX est également impliquée dans l'administration des avantages sociaux pour les employés, aidant les organisations à gérer efficacement les comptes santé et de remboursement. La gamme diversifiée de services de WEX répond à de nombreux secteurs, mettant l'accent sur l'innovation, la durabilité et des solutions efficaces pour la croissance des entreprises.

Description

• Design, develop, and maintain robust, scalable, high-performance object-oriented backend services • Develop public REST APIs using Java and internal gRPC APIs • Architect and realize next-generation Agentic AI Platform capabilities • Design and build agentic AI systems and services for autonomous workflows, reasoning, and task execution • Develop AI agents with orchestration, tool usage, memory, and multi-step decision-making • Implement and scale multi-agent architectures for payments and fleet ecosystems • Integrate AI agents, APIs, and enterprise data sources using MCP or similar frameworks • Build and optimize LLM-powered services for production performance, reliability, and cost efficiency • Implement evaluation frameworks, observability, and guardrails for AI systems • Design context management, memory, and retrieval-augmented generation solutions • Craft system designs, lead design decisions, and align with senior engineers • Write unit, integration, end-to-end, concurrency, and load/performance tests • Identify bottlenecks and technical debt and implement scalability and stability improvements • Automate testing, monitoring, healing, scaling, continuous integration, and deployment • Collaborate with product managers, designers, and engineers on new features • Conduct code reviews and mentor junior and mid-level engineers • Troubleshoot complex issues, author root cause analyses, and improve reliability • Analyze competing technologies and advise on technology solutions • Maintain design documents, runbooks, change-management documents, and readiness plans • Support production applications through monitoring and rapid incident resolution • Lead cross-team projects as a single-threaded owner or tech lead and unblock engineers

🎯 Exigences

• Bachelor’s degree in Computer Science or Software Engineering • 5–8 years of professional experience in software engineering • Strong understanding of data structures and algorithms, object-oriented design, and problem-solving • Expertise designing and developing internet-scale services with scalability, availability, security, and reliability principles • Proficiency in backend development with Java or C#, SpringBoot, RESTful APIs, ODATA framework, and SQL • Hands-on experience building or contributing to AI/LLM-powered applications or agent-based systems • Familiarity with agent frameworks, tool-use patterns, and orchestration of LLM workflows • Experience integrating AI systems with external tools/APIs using MCP or similar protocols • Understanding of prompt engineering, embeddings, and vector-based retrieval systems • Experience designing systems for scaling AI workloads in production • Preferred: Master’s degree in computer science or software engineering • Preferred: 8+ years of software engineering experience • Preferred: Python, Java, event-driven architecture, and Kafka • Preferred: Experience working on card payments • Preferred: Docker and Kubernetes • Preferred: API security and PCI DSS compliance • Ability to work on existing codebase, contribute improvements, and adapt to legacy systems’ constraints • Nice to have: AI skills and production AI solutions • Nice to have: Production-grade AI agents or copilots • Nice to have: Multi-agent systems and distributed AI architectures • Nice to have: Vector databases such as Pinecone, Weaviate, OpenSearch, or Milvus • Nice to have: AI evaluation techniques, safety practices, and responsible AI principles

🏖️ Avantages

• Health insurance • Dental insurance • Vision insurance • Retirement savings plan • Paid time off • Health savings account • Flexible spending accounts • Life insurance • Disability insurance • Tuition reimbursement • Quarterly or annual bonus eligibility for non-sales roles

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